/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 11:59:11,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 11:59:11,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 11:59:11,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 11:59:11,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 11:59:11,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 11:59:11,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 11:59:11,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 11:59:11,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 11:59:11,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 11:59:11,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 11:59:11,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 11:59:11,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 11:59:11,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 11:59:11,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 11:59:11,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 11:59:11,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 11:59:11,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 11:59:11,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 11:59:11,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 11:59:11,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 11:59:11,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 11:59:11,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 11:59:11,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 11:59:11,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 11:59:11,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 11:59:11,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 11:59:11,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 11:59:11,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 11:59:11,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 11:59:11,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 11:59:11,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 11:59:11,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 11:59:11,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 11:59:11,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 11:59:11,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 11:59:11,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 11:59:11,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 11:59:11,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 11:59:11,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 11:59:11,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 11:59:11,863 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 11:59:11,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 11:59:11,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 11:59:11,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 11:59:11,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 11:59:11,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 11:59:11,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 11:59:11,880 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 11:59:11,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 11:59:11,880 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 11:59:11,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 11:59:11,882 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 11:59:11,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 11:59:11,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 11:59:11,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 11:59:11,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 11:59:11,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 11:59:11,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 11:59:11,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 11:59:11,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 11:59:11,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 11:59:11,883 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 11:59:11,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 11:59:11,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 11:59:11,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 11:59:11,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 11:59:12,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 11:59:12,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 11:59:12,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 11:59:12,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 11:59:12,201 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 11:59:12,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2022-12-12 11:59:13,307 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 11:59:13,497 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 11:59:13,498 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i [2022-12-12 11:59:13,507 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd843634c/5e4b0070b35f4b709376015461912824/FLAG6117c3472 [2022-12-12 11:59:13,518 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd843634c/5e4b0070b35f4b709376015461912824 [2022-12-12 11:59:13,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 11:59:13,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 11:59:13,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 11:59:13,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 11:59:13,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 11:59:13,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1461957b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13, skipping insertion in model container [2022-12-12 11:59:13,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 11:59:13,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 11:59:13,700 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i[945,958] [2022-12-12 11:59:13,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 11:59:13,856 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 11:59:13,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.i[945,958] [2022-12-12 11:59:13,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 11:59:13,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 11:59:13,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 11:59:13,927 INFO L208 MainTranslator]: Completed translation [2022-12-12 11:59:13,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13 WrapperNode [2022-12-12 11:59:13,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 11:59:13,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 11:59:13,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 11:59:13,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 11:59:13,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,972 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-12 11:59:13,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 11:59:13,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 11:59:13,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 11:59:13,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 11:59:13,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:13,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:14,000 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:14,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:14,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 11:59:14,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 11:59:14,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 11:59:14,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 11:59:14,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (1/1) ... [2022-12-12 11:59:14,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 11:59:14,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 11:59:14,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 11:59:14,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 11:59:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 11:59:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 11:59:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 11:59:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 11:59:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 11:59:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 11:59:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 11:59:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 11:59:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 11:59:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 11:59:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 11:59:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 11:59:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 11:59:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 11:59:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 11:59:14,112 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 11:59:14,262 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 11:59:14,263 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 11:59:14,402 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 11:59:14,407 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 11:59:14,407 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 11:59:14,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:59:14 BoogieIcfgContainer [2022-12-12 11:59:14,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 11:59:14,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 11:59:14,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 11:59:14,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 11:59:14,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 11:59:13" (1/3) ... [2022-12-12 11:59:14,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff54157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:59:14, skipping insertion in model container [2022-12-12 11:59:14,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 11:59:13" (2/3) ... [2022-12-12 11:59:14,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff54157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 11:59:14, skipping insertion in model container [2022-12-12 11:59:14,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 11:59:14" (3/3) ... [2022-12-12 11:59:14,415 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2022-12-12 11:59:14,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 11:59:14,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 11:59:14,438 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 11:59:14,483 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 11:59:14,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-12 11:59:14,558 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-12 11:59:14,558 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 11:59:14,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-12 11:59:14,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-12 11:59:14,567 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-12 11:59:14,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 11:59:14,582 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7903b29a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 11:59:14,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 11:59:14,596 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-12 11:59:14,596 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 11:59:14,596 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:14,597 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:14,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:14,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2225101, now seen corresponding path program 1 times [2022-12-12 11:59:14,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:14,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172115991] [2022-12-12 11:59:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:14,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:15,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:15,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172115991] [2022-12-12 11:59:15,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172115991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:15,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:15,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 11:59:15,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739907267] [2022-12-12 11:59:15,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:15,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 11:59:15,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 11:59:15,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 11:59:15,317 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-12 11:59:15,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:15,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:15,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-12 11:59:15,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:15,660 INFO L130 PetriNetUnfolder]: 371/1041 cut-off events. [2022-12-12 11:59:15,660 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-12 11:59:15,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 1041 events. 371/1041 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6999 event pairs, 57 based on Foata normal form. 33/1041 useless extension candidates. Maximal degree in co-relation 1672. Up to 217 conditions per place. [2022-12-12 11:59:15,668 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 21 selfloop transitions, 8 changer transitions 37/117 dead transitions. [2022-12-12 11:59:15,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 117 transitions, 381 flow [2022-12-12 11:59:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 11:59:15,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 11:59:15,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 637 transitions. [2022-12-12 11:59:15,699 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8326797385620915 [2022-12-12 11:59:15,702 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2022-12-12 11:59:15,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 117 transitions, 381 flow [2022-12-12 11:59:15,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 117 transitions, 370 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-12 11:59:15,742 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 117 transitions, 370 flow [2022-12-12 11:59:15,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:15,743 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:15,743 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:15,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 11:59:15,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:15,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:15,745 INFO L85 PathProgramCache]: Analyzing trace with hash -167567346, now seen corresponding path program 1 times [2022-12-12 11:59:15,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:15,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256304954] [2022-12-12 11:59:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:15,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:16,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:16,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256304954] [2022-12-12 11:59:16,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256304954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:16,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:16,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:59:16,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691944901] [2022-12-12 11:59:16,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:16,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:59:16,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:16,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:59:16,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:59:16,027 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-12 11:59:16,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 117 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:16,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:16,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-12 11:59:16,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:16,266 INFO L130 PetriNetUnfolder]: 389/1046 cut-off events. [2022-12-12 11:59:16,267 INFO L131 PetriNetUnfolder]: For 47/429 co-relation queries the response was YES. [2022-12-12 11:59:16,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2444 conditions, 1046 events. 389/1046 cut-off events. For 47/429 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6950 event pairs, 3 based on Foata normal form. 23/1038 useless extension candidates. Maximal degree in co-relation 2408. Up to 257 conditions per place. [2022-12-12 11:59:16,274 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 25 selfloop transitions, 9 changer transitions 105/190 dead transitions. [2022-12-12 11:59:16,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 190 transitions, 940 flow [2022-12-12 11:59:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:59:16,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:59:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 898 transitions. [2022-12-12 11:59:16,276 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8126696832579186 [2022-12-12 11:59:16,276 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 17 predicate places. [2022-12-12 11:59:16,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 190 transitions, 940 flow [2022-12-12 11:59:16,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 190 transitions, 908 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-12-12 11:59:16,284 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 190 transitions, 908 flow [2022-12-12 11:59:16,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:16,285 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:16,285 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:16,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 11:59:16,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:16,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:16,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1728105812, now seen corresponding path program 1 times [2022-12-12 11:59:16,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:16,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006250076] [2022-12-12 11:59:16,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:16,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:16,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:16,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006250076] [2022-12-12 11:59:16,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006250076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:16,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:16,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 11:59:16,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671730219] [2022-12-12 11:59:16,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:16,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 11:59:16,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:16,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 11:59:16,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-12 11:59:16,493 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-12 11:59:16,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 190 transitions, 908 flow. Second operand has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:16,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:16,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-12 11:59:16,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:16,783 INFO L130 PetriNetUnfolder]: 446/1206 cut-off events. [2022-12-12 11:59:16,784 INFO L131 PetriNetUnfolder]: For 209/1349 co-relation queries the response was YES. [2022-12-12 11:59:16,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3507 conditions, 1206 events. 446/1206 cut-off events. For 209/1349 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 8584 event pairs, 1 based on Foata normal form. 35/1213 useless extension candidates. Maximal degree in co-relation 3467. Up to 232 conditions per place. [2022-12-12 11:59:16,788 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 21 selfloop transitions, 11 changer transitions 277/360 dead transitions. [2022-12-12 11:59:16,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 360 transitions, 2496 flow [2022-12-12 11:59:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 11:59:16,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 11:59:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1166 transitions. [2022-12-12 11:59:16,791 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8069204152249135 [2022-12-12 11:59:16,792 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 33 predicate places. [2022-12-12 11:59:16,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 360 transitions, 2496 flow [2022-12-12 11:59:16,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 360 transitions, 2438 flow, removed 29 selfloop flow, removed 0 redundant places. [2022-12-12 11:59:16,798 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 360 transitions, 2438 flow [2022-12-12 11:59:16,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 64.875) internal successors, (519), 8 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:16,799 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:16,799 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:16,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 11:59:16,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:16,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:16,800 INFO L85 PathProgramCache]: Analyzing trace with hash 920423643, now seen corresponding path program 1 times [2022-12-12 11:59:16,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:16,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535078764] [2022-12-12 11:59:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:16,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:16,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:16,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535078764] [2022-12-12 11:59:16,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535078764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:16,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:16,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 11:59:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748423065] [2022-12-12 11:59:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:16,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 11:59:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 11:59:16,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 11:59:16,910 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 85 [2022-12-12 11:59:16,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 360 transitions, 2438 flow. Second operand has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:16,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:16,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 85 [2022-12-12 11:59:16,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:17,105 INFO L130 PetriNetUnfolder]: 541/1432 cut-off events. [2022-12-12 11:59:17,105 INFO L131 PetriNetUnfolder]: For 1514/2880 co-relation queries the response was YES. [2022-12-12 11:59:17,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4634 conditions, 1432 events. 541/1432 cut-off events. For 1514/2880 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 10936 event pairs, 5 based on Foata normal form. 18/1428 useless extension candidates. Maximal degree in co-relation 4592. Up to 310 conditions per place. [2022-12-12 11:59:17,110 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 14 selfloop transitions, 5 changer transitions 346/430 dead transitions. [2022-12-12 11:59:17,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 430 transitions, 3312 flow [2022-12-12 11:59:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 11:59:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 11:59:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 655 transitions. [2022-12-12 11:59:17,111 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8562091503267973 [2022-12-12 11:59:17,112 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 41 predicate places. [2022-12-12 11:59:17,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 430 transitions, 3312 flow [2022-12-12 11:59:17,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 430 transitions, 3308 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-12 11:59:17,118 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 430 transitions, 3308 flow [2022-12-12 11:59:17,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.66666666666667) internal successors, (430), 6 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:17,119 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:17,119 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:17,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 11:59:17,119 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:17,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:17,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1125923678, now seen corresponding path program 1 times [2022-12-12 11:59:17,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:17,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308985758] [2022-12-12 11:59:17,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:17,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:17,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:17,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308985758] [2022-12-12 11:59:17,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308985758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:17,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:17,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:59:17,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148676943] [2022-12-12 11:59:17,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:17,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:59:17,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:59:17,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:59:17,230 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-12 11:59:17,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 430 transitions, 3308 flow. Second operand has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 7 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:17,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:17,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-12 11:59:17,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:17,548 INFO L130 PetriNetUnfolder]: 567/1746 cut-off events. [2022-12-12 11:59:17,548 INFO L131 PetriNetUnfolder]: For 1172/4155 co-relation queries the response was YES. [2022-12-12 11:59:17,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6385 conditions, 1746 events. 567/1746 cut-off events. For 1172/4155 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 15067 event pairs, 4 based on Foata normal form. 83/1804 useless extension candidates. Maximal degree in co-relation 6338. Up to 346 conditions per place. [2022-12-12 11:59:17,553 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 26 selfloop transitions, 8 changer transitions 439/524 dead transitions. [2022-12-12 11:59:17,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 524 transitions, 4956 flow [2022-12-12 11:59:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:59:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:59:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 910 transitions. [2022-12-12 11:59:17,555 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2022-12-12 11:59:17,556 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 53 predicate places. [2022-12-12 11:59:17,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 524 transitions, 4956 flow [2022-12-12 11:59:17,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 524 transitions, 4816 flow, removed 70 selfloop flow, removed 0 redundant places. [2022-12-12 11:59:17,565 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 524 transitions, 4816 flow [2022-12-12 11:59:17,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 7 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:17,565 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:17,565 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:17,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 11:59:17,566 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:17,566 INFO L85 PathProgramCache]: Analyzing trace with hash 84164042, now seen corresponding path program 1 times [2022-12-12 11:59:17,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:17,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019798009] [2022-12-12 11:59:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:17,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:17,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:17,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019798009] [2022-12-12 11:59:17,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019798009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:17,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:17,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:59:17,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616572208] [2022-12-12 11:59:17,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:17,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:59:17,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:17,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:59:17,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:59:17,671 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-12 11:59:17,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 524 transitions, 4816 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:17,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:17,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-12 11:59:17,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:18,000 INFO L130 PetriNetUnfolder]: 652/2215 cut-off events. [2022-12-12 11:59:18,000 INFO L131 PetriNetUnfolder]: For 2438/9663 co-relation queries the response was YES. [2022-12-12 11:59:18,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8854 conditions, 2215 events. 652/2215 cut-off events. For 2438/9663 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 21424 event pairs, 4 based on Foata normal form. 61/2248 useless extension candidates. Maximal degree in co-relation 8805. Up to 418 conditions per place. [2022-12-12 11:59:18,008 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 16 selfloop transitions, 6 changer transitions 566/645 dead transitions. [2022-12-12 11:59:18,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 645 transitions, 7040 flow [2022-12-12 11:59:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:59:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:59:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 927 transitions. [2022-12-12 11:59:18,010 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8389140271493213 [2022-12-12 11:59:18,011 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 65 predicate places. [2022-12-12 11:59:18,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 645 transitions, 7040 flow [2022-12-12 11:59:18,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 645 transitions, 6868 flow, removed 86 selfloop flow, removed 0 redundant places. [2022-12-12 11:59:18,026 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 645 transitions, 6868 flow [2022-12-12 11:59:18,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:18,026 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:18,026 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:18,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 11:59:18,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:18,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash -400192896, now seen corresponding path program 2 times [2022-12-12 11:59:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:18,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043521449] [2022-12-12 11:59:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:18,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:18,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:18,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:18,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043521449] [2022-12-12 11:59:18,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043521449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:18,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:18,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:59:18,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011945078] [2022-12-12 11:59:18,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:18,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:59:18,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:18,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:59:18,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:59:18,145 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-12 11:59:18,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 645 transitions, 6868 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:18,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:18,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-12 11:59:18,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:18,562 INFO L130 PetriNetUnfolder]: 755/2634 cut-off events. [2022-12-12 11:59:18,562 INFO L131 PetriNetUnfolder]: For 3623/18136 co-relation queries the response was YES. [2022-12-12 11:59:18,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11786 conditions, 2634 events. 755/2634 cut-off events. For 3623/18136 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 27063 event pairs, 6 based on Foata normal form. 168/2775 useless extension candidates. Maximal degree in co-relation 11734. Up to 516 conditions per place. [2022-12-12 11:59:18,571 INFO L137 encePairwiseOnDemand]: 78/85 looper letters, 14 selfloop transitions, 2 changer transitions 692/762 dead transitions. [2022-12-12 11:59:18,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 762 transitions, 9550 flow [2022-12-12 11:59:18,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 11:59:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 11:59:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1187 transitions. [2022-12-12 11:59:18,573 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8214532871972319 [2022-12-12 11:59:18,574 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 81 predicate places. [2022-12-12 11:59:18,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 762 transitions, 9550 flow [2022-12-12 11:59:18,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 762 transitions, 9352 flow, removed 49 selfloop flow, removed 4 redundant places. [2022-12-12 11:59:18,592 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 762 transitions, 9352 flow [2022-12-12 11:59:18,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:18,592 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:18,592 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:18,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 11:59:18,592 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:18,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:18,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1780147634, now seen corresponding path program 3 times [2022-12-12 11:59:18,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:18,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988740205] [2022-12-12 11:59:18,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:18,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:18,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:18,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988740205] [2022-12-12 11:59:18,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988740205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:18,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:18,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 11:59:18,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937103056] [2022-12-12 11:59:18,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:18,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 11:59:18,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:18,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 11:59:18,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 11:59:18,688 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-12 11:59:18,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 762 transitions, 9352 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:18,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:18,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-12 11:59:18,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:19,324 INFO L130 PetriNetUnfolder]: 2131/5750 cut-off events. [2022-12-12 11:59:19,324 INFO L131 PetriNetUnfolder]: For 4769/6349 co-relation queries the response was YES. [2022-12-12 11:59:19,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18406 conditions, 5750 events. 2131/5750 cut-off events. For 4769/6349 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 60988 event pairs, 80 based on Foata normal form. 80/5433 useless extension candidates. Maximal degree in co-relation 18355. Up to 1342 conditions per place. [2022-12-12 11:59:19,345 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 15 selfloop transitions, 6 changer transitions 488/574 dead transitions. [2022-12-12 11:59:19,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 574 transitions, 6652 flow [2022-12-12 11:59:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 11:59:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 11:59:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2022-12-12 11:59:19,347 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8564705882352941 [2022-12-12 11:59:19,347 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 86 predicate places. [2022-12-12 11:59:19,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 574 transitions, 6652 flow [2022-12-12 11:59:19,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 574 transitions, 6503 flow, removed 46 selfloop flow, removed 3 redundant places. [2022-12-12 11:59:19,363 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 574 transitions, 6503 flow [2022-12-12 11:59:19,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:19,363 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:19,363 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:19,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 11:59:19,363 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:19,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:19,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2047299679, now seen corresponding path program 1 times [2022-12-12 11:59:19,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:19,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642753527] [2022-12-12 11:59:19,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:19,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:19,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:19,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642753527] [2022-12-12 11:59:19,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642753527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:19,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:19,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:59:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547103714] [2022-12-12 11:59:19,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:19,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:59:19,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:19,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:59:19,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:59:19,457 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-12 11:59:19,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 574 transitions, 6503 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:19,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:19,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-12 11:59:19,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:19,981 INFO L130 PetriNetUnfolder]: 1638/4289 cut-off events. [2022-12-12 11:59:19,982 INFO L131 PetriNetUnfolder]: For 2697/4905 co-relation queries the response was YES. [2022-12-12 11:59:19,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13212 conditions, 4289 events. 1638/4289 cut-off events. For 2697/4905 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 43538 event pairs, 9 based on Foata normal form. 403/4394 useless extension candidates. Maximal degree in co-relation 13159. Up to 1245 conditions per place. [2022-12-12 11:59:19,996 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 15 selfloop transitions, 9 changer transitions 311/390 dead transitions. [2022-12-12 11:59:19,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 390 transitions, 4036 flow [2022-12-12 11:59:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 11:59:19,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 11:59:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 947 transitions. [2022-12-12 11:59:19,998 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8570135746606334 [2022-12-12 11:59:19,999 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 89 predicate places. [2022-12-12 11:59:19,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 390 transitions, 4036 flow [2022-12-12 11:59:20,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 390 transitions, 3711 flow, removed 128 selfloop flow, removed 7 redundant places. [2022-12-12 11:59:20,009 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 390 transitions, 3711 flow [2022-12-12 11:59:20,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:20,010 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:20,010 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:20,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 11:59:20,010 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:20,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1535265170, now seen corresponding path program 1 times [2022-12-12 11:59:20,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:20,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654850569] [2022-12-12 11:59:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:20,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:20,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:20,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654850569] [2022-12-12 11:59:20,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654850569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:20,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:20,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 11:59:20,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961011738] [2022-12-12 11:59:20,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:20,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 11:59:20,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 11:59:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-12 11:59:20,114 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-12 11:59:20,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 390 transitions, 3711 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:20,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:20,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-12 11:59:20,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:20,546 INFO L130 PetriNetUnfolder]: 1482/3859 cut-off events. [2022-12-12 11:59:20,547 INFO L131 PetriNetUnfolder]: For 2191/4688 co-relation queries the response was YES. [2022-12-12 11:59:20,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12934 conditions, 3859 events. 1482/3859 cut-off events. For 2191/4688 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 40024 event pairs, 3 based on Foata normal form. 511/4159 useless extension candidates. Maximal degree in co-relation 12880. Up to 845 conditions per place. [2022-12-12 11:59:20,559 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 9 selfloop transitions, 12 changer transitions 180/256 dead transitions. [2022-12-12 11:59:20,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 256 transitions, 2249 flow [2022-12-12 11:59:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 11:59:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 11:59:20,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1150 transitions. [2022-12-12 11:59:20,561 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8455882352941176 [2022-12-12 11:59:20,561 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 72 predicate places. [2022-12-12 11:59:20,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 256 transitions, 2249 flow [2022-12-12 11:59:20,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 256 transitions, 2027 flow, removed 70 selfloop flow, removed 11 redundant places. [2022-12-12 11:59:20,568 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 256 transitions, 2027 flow [2022-12-12 11:59:20,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:20,569 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 11:59:20,569 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:20,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 11:59:20,569 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 11:59:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 11:59:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1479660123, now seen corresponding path program 1 times [2022-12-12 11:59:20,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 11:59:20,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887930500] [2022-12-12 11:59:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 11:59:20,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 11:59:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 11:59:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 11:59:20,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 11:59:20,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887930500] [2022-12-12 11:59:20,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887930500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 11:59:20,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 11:59:20,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 11:59:20,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147105103] [2022-12-12 11:59:20,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 11:59:20,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 11:59:20,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 11:59:20,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 11:59:20,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 11:59:20,667 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 85 [2022-12-12 11:59:20,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 256 transitions, 2027 flow. Second operand has 7 states, 7 states have (on average 63.857142857142854) internal successors, (447), 7 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:20,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 11:59:20,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 85 [2022-12-12 11:59:20,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 11:59:21,019 INFO L130 PetriNetUnfolder]: 1965/4752 cut-off events. [2022-12-12 11:59:21,020 INFO L131 PetriNetUnfolder]: For 1894/3175 co-relation queries the response was YES. [2022-12-12 11:59:21,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15747 conditions, 4752 events. 1965/4752 cut-off events. For 1894/3175 co-relation queries the response was YES. Maximal size of possible extension queue 733. Compared 49409 event pairs, 0 based on Foata normal form. 34/4440 useless extension candidates. Maximal degree in co-relation 15688. Up to 1113 conditions per place. [2022-12-12 11:59:21,036 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 0 selfloop transitions, 0 changer transitions 298/298 dead transitions. [2022-12-12 11:59:21,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 298 transitions, 2782 flow [2022-12-12 11:59:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 11:59:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 11:59:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2022-12-12 11:59:21,037 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7794117647058824 [2022-12-12 11:59:21,038 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 66 predicate places. [2022-12-12 11:59:21,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 298 transitions, 2782 flow [2022-12-12 11:59:21,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 298 transitions, 2706 flow, removed 23 selfloop flow, removed 1 redundant places. [2022-12-12 11:59:21,045 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 298 transitions, 2706 flow [2022-12-12 11:59:21,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.857142857142854) internal successors, (447), 7 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 11:59:21,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 11:59:21,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 11:59:21,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 11:59:21,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 11:59:21,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 11:59:21,049 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 11:59:21,051 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 11:59:21,051 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 11:59:21,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 11:59:21 BasicIcfg [2022-12-12 11:59:21,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 11:59:21,057 INFO L158 Benchmark]: Toolchain (without parser) took 7530.43ms. Allocated memory was 207.6MB in the beginning and 474.0MB in the end (delta: 266.3MB). Free memory was 182.4MB in the beginning and 286.3MB in the end (delta: -103.9MB). Peak memory consumption was 163.6MB. Max. memory is 8.0GB. [2022-12-12 11:59:21,057 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory is still 184.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 11:59:21,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.65ms. Allocated memory is still 207.6MB. Free memory was 182.4MB in the beginning and 159.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-12 11:59:21,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.28ms. Allocated memory is still 207.6MB. Free memory was 159.0MB in the beginning and 157.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 11:59:21,057 INFO L158 Benchmark]: Boogie Preprocessor took 28.89ms. Allocated memory is still 207.6MB. Free memory was 157.0MB in the beginning and 155.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 11:59:21,058 INFO L158 Benchmark]: RCFGBuilder took 406.18ms. Allocated memory is still 207.6MB. Free memory was 155.4MB in the beginning and 142.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 11:59:21,060 INFO L158 Benchmark]: TraceAbstraction took 6645.78ms. Allocated memory was 207.6MB in the beginning and 474.0MB in the end (delta: 266.3MB). Free memory was 140.7MB in the beginning and 286.3MB in the end (delta: -145.6MB). Peak memory consumption was 121.7MB. Max. memory is 8.0GB. [2022-12-12 11:59:21,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory is still 184.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 400.65ms. Allocated memory is still 207.6MB. Free memory was 182.4MB in the beginning and 159.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.28ms. Allocated memory is still 207.6MB. Free memory was 159.0MB in the beginning and 157.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.89ms. Allocated memory is still 207.6MB. Free memory was 157.0MB in the beginning and 155.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 406.18ms. Allocated memory is still 207.6MB. Free memory was 155.4MB in the beginning and 142.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 6645.78ms. Allocated memory was 207.6MB in the beginning and 474.0MB in the end (delta: 266.3MB). Free memory was 140.7MB in the beginning and 286.3MB in the end (delta: -145.6MB). Peak memory consumption was 121.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 626 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 626 mSDsluCounter, 684 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 511 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 883 IncrementalHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 173 mSDtfsCounter, 883 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9352occurred in iteration=7, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 1387 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 2622 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 11:59:21,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...